Do·lo·mite Alps (dō'lə-mīt', dŏl'ə-) A range of the eastern Alps in northeast Italy rising to 3,344.3 m (10,965 ft). The dolomitic limestone peaks of the range are famous for their vivid coloring at sunrise and sunset.
A gray, pink, or white rhombohedral mineral. Dolomite occurs in curved saddlelike crystals with a pearly to glassy luster. It is a common rock-forming mineral. Chemical formula: CaMg(CO3)2.
A sedimentary rock containing more than 50 percent of the mineral dolomite by weight.